“Excess in eating leads to laziness in fulfilling obligatory duties such as prayer, as well as other recommended acts. It increases the likelihood of disobedience by instigating desires and reducing self-control. A person is more likely to become angry, for example, after having overindulged. The mind also functions less effectively on a full stomach, and this has been confirmed by scientific research. When the stomach is full, more blood goes to that area to process the food, leaving less blood available for the brain.” BrainHealthOvereating Book:Psychology from the Islamic Perspective Source: Psychology from the Islamic Perspective
“Evidence for this theory comes from the finding that every species seems to have a genetically determined maximum lifespan. While the average life expectancy for humans has increased, the maximum lifespan has remained stable (approximately 120 years). There is also research to suggest that at an early age, our genes trigger hormonal changes in the brain and regulate the cellular reproduction and repair process. At some point in the process, the genes that promote growth are 'switched off,' and those that promote aging are turned on. This leads to a steady decline in the functioning of the body until death occurs. One may see changes not only in physical functioning, but in the cognitive, emotional, and psychological domains as well.” DeathBrainPsychologyAgingGenesHuman DevelopmentLifespan Book:Psychology from the Islamic Perspective Source: Psychology from the Islamic Perspective
“Islam emphasizes reason; it is the basis upon which humans are held accountable for their choices. It is also the characteristic that elevates the human being above the rest of Allah's creation, if that gift is used appropriately. Islamic law is designed in such a way as to preserve reason and intellect and to ensure its well-being and freedom. Islam prohibits the use of any substance that may affect the mind negatively or decrease its ability in any way.” BrainPsychologyMental HealthIslamIntellectCognitionSubstance Abuse Book:Psychology from the Islamic Perspective Source: Psychology from the Islamic Perspective